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Course: Mathematics — Second Preparatory
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Mathematics — Second Preparatory

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Ascending Cumulative Frequency Table

Mathematics — Second Preparatory

Ascending Cumulative Frequency Table

Reading the ascending cumulative table

Reading the ascending cumulative table

  • The ascending cumulative frequency at the upper limit of a class is the number of values that are less than that limit.
  • From the table, we conclude that the number of values less than 30 is 20, and the number of values less than 40 is 25.
  • Also, the number of values that are 30 or more is 28 − 20 = 8.
  • To find the median class, we locate the position (total ÷ 2), which is the 14th value here, and find the first class whose cumulative frequency reaches or passes this position.
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